The moment a right-wing Proud Boy protester knocks out an antifa demonstrator is going viral online in the wake of the Portland riots last weekend.

Ethan Michael Nordean, also known as Rufio, is seen punching a reported antifa protester, who was wielding a baton, in the face.

The hit was so strong it sent the man’s sunglasses flying in the air, and it appeared to knock him out instantly. He then fell to the ground, seemingly knocked out cold. His limp body was then dragged away by two others.

The knockout happened in the midst of clashes between members of the far-right Patriot Prayer group, the Proud Boys group and their supporters and antifa counter-protesters.

Footage of the punch was captured and shared in an edited, packaged video by the Very Fake News YouTube channel. The moment has been widely shared on social media by right-wing activists.

The man who was knocked out was seen attempting to take a swing at Nordean seconds before he was hit. In the moments before the face off, Nordean and two others appeared to have knocked another man to the ground.

Patriot Prayer arranged a march in downtown Portland. Opposing protesters arrived and police soon revoked the protest permit and declared it a riot. Nordean was later arrested, but he doesn’t appear to have been charged.